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Finding the Fourth Proportional to 473.00, 709.44 and 198.87

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Solution

The fourth proportional to 473.00, 709.44 and 198.87 is: 298.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.00 : 709.44 = 198.87 : x
  2. Step 2: Convert to fraction form
    473.00/709.44 = 198.87/x
  3. Step 3: Cross multiply
    473.00x = 709.44 × 198.87
  4. Step 4: Simplify right side
    473.00x = 141,086.33
  5. Step 5: Solve for x
    x = 141,086.33/473.00
  6. Step 6: Final answer
    x = 298.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.